Example 3.....................................................................................70
Examples on how to connect, configure and set CT inputs for
most commonly used CT connections..........................................73
Example on how to connect a wye connected three-phase CT
set to the IED................................................................................74
Example how to connect delta connected three-phase CT set
to the IED......................................................................................79
Example how to connect single-phase CT to the IED.................. 82
Relationships between setting parameter Base Current, CT rated
primary current and minimum pickup of a protection IED..................84
Setting of voltage channels............................................................... 84
Example........................................................................................84
Examples how to connect, configure and set VT inputs for
most commonly used VT connections..........................................85
Examples on how to connect a three phase-to-ground
connected VT to the IED.............................................................. 86
Example on how to connect a phase-to-phase connected VT
to the IED......................................................................................88
Example on how to connect an open delta VT to the IED for
high impedance grounded or ungrounded networks.................... 90
Example how to connect the open delta VT to the IED for low
impedance grounded or solidly grounded power systems........... 93
Example on how to connect a neutral point VT to the IED........... 96
Section 5 Local HMI............................................................................ 99
Display..................................................................................................100
LEDs.....................................................................................................103
Keypad..................................................................................................104
Local HMI functionality..........................................................................106
Protection and alarm indication....................................................... 106
Parameter management .................................................................107
Front communication....................................................................... 108
Section 6 Wide area measurement system.......................................109
C37.118 Phasor Measurement Data Streaming Protocol
Configuration PMUCONF..................................................................... 109
Identification.................................................................................... 109
Application....................................................................................... 109
Operation principle.......................................................................... 109
Short guidance for use of TCP................................................... 110
Short guidance for use of UDP...................................................111
Protocol reporting via IEEE 1344 and C37.118 PMUREPORT............ 113
Table of contents
2 Line distance protection REL670 2.2 ANSI
Application manual
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